diff --git a/src/css/popup.css b/src/css/popup.css
index f85cea89d..bc2e523ea 100644
--- a/src/css/popup.css
+++ b/src/css/popup.css
@@ -88,6 +88,9 @@ p {
     cursor: pointer;
     position: relative;
     }
+#dynamicFilteringToggler.hasBlock:not(.on) {
+    background-color: #fbb;
+    }
 #dynamicFilteringToggler > div {
     font-size: 9px;
     line-height: 100%;
diff --git a/src/js/popup.js b/src/js/popup.js
index 0583511a5..bc733df23 100644
--- a/src/js/popup.js
+++ b/src/js/popup.js
@@ -74,8 +74,9 @@ var syncDynamicFilter = function(scope, i, result) {
 /******************************************************************************/
 
 var syncAllDynamicFilters = function() {
+    var hasBlock = false;
     var scopes = ['.', '/'];
-    var scope, results, i;
+    var scope, results, i, result;
     while ( scope = scopes.pop() ) {
         if ( stats.dynamicFilterResults.hasOwnProperty(scope) === false ) {
             continue;
@@ -83,9 +84,14 @@ var syncAllDynamicFilters = function() {
         results = stats.dynamicFilterResults[scope];
         i = 5;
         while ( i-- ) {
-            syncDynamicFilter(scope, i + 1, results[i]);
+            result = results[i];
+            syncDynamicFilter(scope, i + 1, result);
+            if ( scope === '.' && result.length !== 0 && result.slice(0, 2) !== '@@' ) {
+                hasBlock = true;
+            }
         }
     }
+    uDom('#dynamicFilteringToggler').toggleClass('hasBlock', hasBlock);
 };
 
 /******************************************************************************/